Improvement in grain-separators



2 S'heets--Sheet 2,

H. KURTH. Grain-Separator.

Patented'May 11,1875.

vv/ TNES SE 5: /N vE/v 7am QM- mmm aww jm? Cmmmuce UNITED STATES PATENT @Farce HERMANN KURTH, OF MILWAUKEE, VVISGONSIN.

IMPROVEMENT IN GRAIN-SEPARATORS.

Specification forming part of Letters Patent N o. 163.214, dated May l1, 1875; application filed April 12, 1875.

To all whom it may concern:

Be it known that I, HERMANN KUR'rH, of Milwaukee, in the county of Milwaukee and State of Wisconsin, have invented certain new and useful Improvements in GrainSep arators 5 and I do hereby declare that the following is a full, clear, and exact description thereof', which will enable others skilled in the art to which it pertains to make and use the same, reference being had to the accompanying drawings, and to the letters of reference marked thereon, which form a part of this specification.

The nature of my invention lconsists in the construction and arrangement of a machine for cleaning wheat ofoats, cockle, or other foreign substances, as will be hereinafter more fully set forth.

In the annexed drawing, Figure l is a side elevation of my machine. Fig. 2 is a' plan view ofthe saine. Fig. 3 is a transverse vertical section. Fig. 4 is a longitudinal vertical section. Fig. 5 is an enlarged section of a part of the cylinder, and Fig. 6 is a perspective view of a suction-fan used in connection therewith.

A represents the frame of my machine. B is the revolving cylinder, formed of sheet metal, with numerous cavities or recesses on the inner side. At each end of the cylinder is Isecured to it a ring, V, the inner edge of which is rounded, as shown in Fig. 5, and runs in circumferential grooves on two frictionwheels, U U, secured on two parallel shafts, T T, which have their bearings on the frame A, and serve to steady the cylinder while supporting and actuating it. Two of these wheels at each end support the cylinder and revolve the same by friction when the shafts are rotated. The shafts are revolved from a main shaft, S', having driving-pulley S, and pro! vided with bevel-gears a c, meshing with corresponding gears b b on the ends of the shafts T. The shaft S is, by a belt, connected with a pulley on a shaft, d, beyond the other end of the cylinder, which shaft is, at one end, provided with the suction-fan D, revolving Within the fan-case D2. On the shaft d is also securedan eccentric, F', for operating a shaker, C, which is attached to and supported by suitable spring-arms, and as the eccentric moves the shaker in one direction, springs Dl bring it back in the opposite direction. In the top of the shaker is the inclined upper oat-sieve G, inclining outward. Under the lower end of this sieve is a chute, H, which conveys the grain inward again to a second -oat -sieve, I, also inclined outward. The grain, passing through these two sieves, is freed from all oats, which roll over the sieves out of the machine. From the sieve I the grain falls on an outwardly-inclined chute, K, which conveys it to the cockle-sieve L, below which is vthe perforated bottom M of the shaker. From this perforated bottom the shaker has an extension, N, projecting into the cylinder B, and under the shaker N, Within the cylinder, is a perforated slide, 0. The shaker N is supported by a spring, P, as shown. Within the cylinder is an inclined blade, G1, attached to vibrating arms U2, and the upper edge of said blade provided with rubber B', and held against the inner surface of the cylinder. The rubber-edged blade G1, in conjunction with the vibrating brush W in the upper part ofthe cylinder, cleans the cylinder from the impurities collect-ed in the cavities thereon; said impurities passing down the incline into a gut-ter, A', and conveyed out of the machine. Q, and B are the spouts receiving the grain from the shaker and cylinder, from the latter it passing through the openings E' to the spout. From the fan-case D2 an air-shaft, E, lextends upward, then curved or arched and downward to the point where the spouts Q R connect. To the arched portion of this air-shaft is secured the feed-hopper F, which, by a channel, 2", connects with the interior of the air-shaft, as shown in Fig. 4. When the machine is in operation the fan D, by suction, draws all the dust 4through this shaft into the fan-case, and expels it therefrom through the outlet D3. The draft through the air-shaft is regulated by means of slides X Y Z, as shown.

Having thus fully described my invention, what I claim as new, and desire to secure by Letters Patent, is-

l. The com bination, with the revolving cylinder B, of the rings V and the ygrooved Wheels U on the parallel shafts T, substantially as described, whereby the cylinder isv suspended and steadied at both ends and re volved, as set forth.

2. The vibrating blade C1, provided with the rubber edge B, and arranged Within the revolving cylinder B, substantially as and for the purpose herein set forth.

3. The revolving cylinder B, rings V, grooved Wheels U, and parallel shafts T T, in combination With vibrating blade C1, having rubber edge B', all substantially as and for the purpose specified.

In testimony that Iolaim the foregoing as my own, I aiix my signature in presence of two Witnesses.

HERMANN KUBTH.

Witnesses:

G. H. WATsoN, HARRY C. SCOTT. 

